Scan Time Reduction in Spectroscopic Imaging Using HYPR

Mistretta C, Reeder S, Wieben O, Perry J, Wu Y, Wu Y

University of Wisconsin - Madison, University of Wisconsin - Madison

The application of spectroscopic imaging techniques such as CSI are limited in clinical practice mainly for the extensive acquisition times. Here we propose the use of a HighlY constrained backPRojection reconstruction (HYPR), a novel reconstruction technique for spectroscopic imaging with a radial trajectory to significantly reduce scan times. Simulations are presented that demonstrate good results for the obtained spectra and metabolite images, with a speedup factor of 17 over a fully sampled Cartesian acquisition.